There are 12 zip codes in Olmsted County, Minnesota. The most populated is 55901, located in Rochester. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
5590158,015Rochester
5590428,816Rochester
5590226,047Rochester
5590620,023Rochester
559768,526Stewartville
559208,523Byron
559343,604Eyota
559603,256Oronoco
559322,035Elgin
559291,310Dover
559030Rochester
559050Rochester

Zip Codes in Olmsted County, Minnesota by Population (2024)